You have a portfolio that consist of the following securities:
Stock Expected Return Price Number of Shares
AAA 10.5% 55 500
BB 5.00% 25 1000
RAD 12.0% 100 200
FIN 9.00% 75 400
CAT 7.00% 45 900
Given that the risk free rate is 11.95% and the risk premium on the market is 5.5%, what is the beta of the portfolio?